Quick-release buffer connecting structure for electrically driven trailer

Abstract

The application discloses a quick-release buffer connecting structure for an electrically-driven trailer, which comprises a quick-release joint I for connecting with the electrically-driven trailer, a flexible rubber (5), a quick-release joint II for connecting with a carrying device, one end of the flexible rubber (5) is connected with the quick-release joint I through a steering elbow pipe (2), the other end of the flexible rubber (5) is connected with the quick-release joint II through a supporting elbow pipe (6), and the included angle between the axis of the flexible rubber (5) and the axis of a straight pipe section (601) of the supporting elbow pipe for connecting the quick-release joint II is an acute angle. The flexible rubber is adopted in the application, so that a good buffering effect can be achieved, meanwhile, in the process of linkage running (especially linkage turning) of the electrically-driven trailer and the carrying device, the buffering connecting structure can also realize bending and twisting with arbitrary degrees of freedom by means of the flexible rubber. The two quick-release joints are adopted in the application, so that the electrically-driven trailer and the carrying device can be quickly connected and separated, and the convenience of operation of the electrically-driven trailer is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric vehicles, and particularly relates to a quick-release type buffer connecting structure for an electric drive trailer. BACKGROUND

[0002] At present, the turning structure of the vehicle head of a domestic electric drive trailer is mostly rigidly connected, and multi-degree-of-freedom rotation is achieved through various bearings. Since the rigid connection does not have a buffering function, the severe vibration generated when the vehicle works in a harsh environment can easily damage various components such as bearings and shorten the service life. When the electric drive trailer and the carrying equipment connected thereto are synchronously driven, especially when they are linked to turn, the speed of the carrying equipment and the electric drive trailer cannot be completely consistent, and the turning structure of the vehicle head with rigid connection cannot meet the asynchronous buffering in multiple directions, which causes great difficulty in the design of the control system. In addition, the vehicle head of the electric drive trailer is mostly connected to other components of the turning structure through bolts. Since the bolt connection and disconnection are time-consuming and laborious, quick disassembly and assembly cannot be achieved, which seriously affects the use efficiency of the electric drive trailer. SUMMARY

[0003] To solve the above technical problems, the purpose of the present application is to provide a quick-release type buffer connecting structure for an electric drive trailer.

[0004] The purpose of the present application is achieved by the following technical solution: a quick-release type buffer connecting structure for an electric drive trailer, comprising a quick-release connector I for connecting with the electric drive trailer, a flexible rubber 5, and a quick-release connector II for connecting with the carrying equipment, one end of the flexible rubber 5 being connected to the quick-release connector I through a steering elbow pipe 2, and the other end being connected to the quick-release connector II through a support elbow pipe 6, the included angle between the axis of the flexible rubber 5 and the axis of the straight pipe segment 601 of the support elbow pipe for connecting the quick-release connector II being an acute angle.

[0005] Through the above technical solution, the quick-release type buffer connecting structure for an electric drive trailer can achieve the following beneficial effects:

[0006] (1) The design of the flexible rubber can achieve good buffering effect when the speed of the carrying equipment is greater than the speed of the electric drive trailer or when the speed of the electric drive trailer is greater than the speed of the carrying equipment, thereby effectively solving the problem that the existing turning structure of the vehicle head of the electric drive trailer is easily damaged due to rigid connection when working under severe vibration; at the same time, the buffer connecting structure can also realize bending and twisting in any degree of freedom during the linked travel of the electric drive trailer and the carrying equipment (especially during linked turning), thereby effectively solving the problem of difficulty in the design of the drive control system caused by the inability to achieve complete consistency in speed during the linked travel of the carrying equipment and the electric drive trailer.

[0007] (2) The design of two quick-release joints can realize the quick connection and disconnection of the electric drive trailer and the transportation equipment, and is conducive to improving the convenience of the operation of the electric drive trailer.

[0008] (3) The design of the steering elbow and the supporting elbow ensures the stability of the buffer connecting structure during the linkage running of the carrying equipment and the electric drive trailer.

[0009] In an embodiment, both ends of the flexible rubber 5 are provided with buffer pads, and the two buffer pads are connected with the corresponding flanges II 3 respectively, and the two flanges II 3 are rigidly connected with the steering elbow 2 and the supporting elbow 6 respectively.

[0010] By means of the design, the connection of the flexible rubber and other components is realized through the buffer pad during product assembly, and the integrity of the flexible rubber is ensured.

[0011] In an embodiment, mounting studs 501 are protrudingly arranged at both ends of the flexible rubber 5, and the buffer pads are limited by self-locking nuts 11 after being sleeved on the mounting studs 501.

[0012] By means of the design, the assembly of the buffer pad at the end of the flexible rubber can be quickly realized.

[0013] In an embodiment, the buffer pad is a rubber pad 4.

[0014] In an embodiment, the quick-release joint II is a quick-release base 8, which includes a flange seat 803 for connecting with the carrying equipment, and an elbow connecting cylinder 804 for inserting the straight pipe segment 601 of the supporting elbow, the elbow connecting cylinder 804 is arranged on the flange seat 803 in a direction perpendicular to the flange seat, a slotted hole 805 is arranged on the elbow connecting cylinder in a direction perpendicular to the flange seat, light hole bosses 801 and threaded bosses 802 are symmetrically arranged on the elbow connecting cylinder on both sides of the slotted hole, and the end of the quick pressure screw 7 passes through the light hole boss and is screwed into the threaded boss.

[0015] By means of the design, the quick disassembly and assembly of the supporting elbow and the quick-release base are realized through the handle of the other end of the quick pressure screw, and the corresponding pressing force can be conveniently realized by adjusting the depth of the quick pressure screw screwed into the threaded boss.

[0016] In an embodiment, one end of the slotted hole 805 penetrates through the end of the elbow connecting cylinder 804 away from the flange seat 803, and the other end of the slotted hole 805 is away from the other end of the elbow connecting cylinder 804.

[0017] By means of the design, not only the convenience of slotted hole processing is improved, but also the strength of the elbow connecting cylinder is ensured.

[0018] In an embodiment, the quick-release joint I is a flange I 1.

[0019] With the design, the quick disassembly of the buffer connecting structure and the electric drive trailer can be realized, and meanwhile, too many parts are not needed, the cost is controlled, and the disassembly efficiency is improved.

[0020] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is an embodiment of the quick disassembly buffer connecting structure for electric drive trailer.

[0022] Figure 2 is Figure 1 the connecting diagram of the flexible rubber, rubber pad plate and flange plate II in the embodiment shown.

[0023] Figure 3 is Figure 1 the structure diagram of the quick disassembly base in the embodiment shown.

[0024]

LIST OF REFERENCE NUMERALS

[0025] 1-flange plate I, 2-turning elbow pipe, 3-flange plate II, 4-rubber pad plate, 5-flexible rubber, 6-supporting elbow pipe, 601-straight pipe section, 7-quick pressure screw, 8-quick disassembly base, 801-light hole boss, 802-threaded boss, 803-flange seat, 804-elbow pipe connecting cylinder, 805-slotted, 9-bolt, 10-nut. DETAILED DESCRIPTION

[0026] The technical scheme of the present application is described in detail below in combination with the preferred embodiments and the drawings.

[0027] The application discloses a quick-release buffer connecting structure for an electrically-driven trailer, which comprises a quick-release joint I, flexible rubber and a quick-release joint II, the quick-release joint I is used for connecting with the electrically-driven trailer, the quick-release joint II is used for connecting with a carrying device, one end of the flexible rubber is connected with the quick-release joint I through a steering elbow pipe, the other end of the flexible rubber is connected with the quick-release joint II through a supporting elbow pipe, and the included angle between the axis of the flexible rubber and the axis of the straight pipe section of the supporting elbow pipe for connecting the quick-release joint II is an acute angle. When the electrically-driven trailer and the carrying device are connected through the above structure, the buffer connecting structure can achieve good buffering effect when the speed of the carrying device is greater than the speed of the electrically-driven trailer, and the buffer connecting structure can also achieve good buffering effect when the speed of the electrically-driven trailer is greater than the speed of the carrying device, thereby effectively solving the problem that the existing head turning structure of the electrically-driven trailer is easily damaged due to rigid connection when the head turning structure is subjected to severe vibration; meanwhile, the buffer connecting structure can also realize bending and twisting with arbitrary degrees of freedom in the process of linkage driving of the electrically-driven trailer and the carrying device (especially linkage turning), thereby effectively solving the problem of design difficulty of a driving control system caused by the fact that the speed of the electrically-driven trailer and the speed of the carrying device cannot be completely consistent; in addition, the quick-release joint can make the connection of other parts with the electrically-driven trailer and the carrying device more convenient, and greatly improve the dismounting efficiency.

[0028] Please refer to Figure 1This is an embodiment of a quick-release buffer connection structure for an electric trailer according to the present invention. This embodiment includes a flange I1, a steering bend 2, a flexible rubber 5, a support bend 6, and a quick-release base 8. The flange I1 serves as a quick-release connector I for connecting the buffer connection structure to the electric trailer. With the help of the flange and suitable bolts and nuts, the buffer connection structure and the electric trailer can be quickly connected and disassembled, requiring fewer parts, thus controlling costs and improving assembly / disassembly efficiency. The flexible rubber 5 provides a buffering effect and allows for bending and torsion of any degree of freedom during the movement of the transport equipment and the electric trailer. Both ends of the flexible rubber have protruding (e.g., pre-embedded design) mounting studs 501. After the rubber pad 4 is fitted onto the aforementioned mounting studs, a self-locking nut 11 is screwed onto the mounting studs, thereby installing the rubber pad at the end of the flexible rubber. During product assembly, the rubber pad... The pads connect the flexible rubber to other components, ensuring the integrity of the flexible rubber. Each rubber pad 4 is connected to the flange II 3 on the same side through through holes at the corners and the engagement of bolts 9 and nuts 10. The flange I is rigidly connected to one end of the steering bend 2 (e.g., by welding), and the other end of the steering bend 2 is rigidly connected to the flange II 3 located on the left side of the flexible rubber (e.g., by welding). The other flange II 3 located on the right side of the flexible rubber is rigidly connected to one end of the support bend 6 (e.g., by welding). In this embodiment, the steering bend and support bend ensure the stability of the buffer connection structure during vehicle linkage. The other end of the support bend 6 is connected to the quick-release base 8, and the axis of the flexible rubber 5 and the support bend are used to connect the straight pipe section 601 of the quick-release base (i.e., Figure 1 The angle formed by the axis of the vertically extending pipe section is an acute angle (e.g., 45°). When the speeds of the transport equipment and the electric trailer are asynchronous, the flexible rubber bears the forward thrust of the transport equipment or the forward pull of the electric trailer. Because there is a certain angle between the axis of the flexible rubber and the vertical direction, it can withstand a part of the impact along the axis of the flexible rubber, which helps to improve the durability of the flexible rubber.

[0029] In the embodiment, the quick release base 80 is used as the quick release joint II of the buffer connecting structure connected with the carrying device, and specifically includes a flange seat 803 and an elbow connecting cylinder 804. The flange seat and the matched bolts and nuts can be used to quickly connect and disassemble the buffer connecting structure and the carrying device, and meanwhile, the buffer connecting structure and the carrying device do not need too many parts, so that the cost is controlled and the disassembling efficiency is improved. An end surface of the flange seat is provided with the elbow connecting cylinder 804 extending in a direction perpendicular to the flange seat (optimally, the axis of the elbow connecting cylinder is in a straight line with the axis of the flange seat), the elbow connecting cylinder is provided with a slot 805 extending in a direction perpendicular to the flange seat, the elbow connecting cylinder on both sides of the slot is symmetrically provided with a light hole boss 801 and a threaded boss 802, the light hole boss is a boss with a through hole, and the threaded boss is a boss with a threaded hole. The end of the quick pressure screw 7 is screwed into the threaded boss after passing through the light hole boss, the quick disassembly of the elbow and the quick release base is realized by the handle of the other end of the quick pressure screw, the corresponding pressing force can be realized by adjusting the depth of the quick pressure screw screwed into the threaded boss, and of course, the pressing force can also be realized by increasing or reducing the number of the light hole boss and the threaded boss. Meanwhile, considering the convenience of processing and the strength of the elbow connecting cylinder, the upper end of the slot 805 in the embodiment penetrates the upper end of the elbow connecting cylinder 804 away from the flange seat 803, and the lower end of the slot 805 is away from the lower end of the elbow connecting cylinder close to the flange seat (i.e., in a state of not penetrating).

[0030] In addition, in other embodiments of the present application, other materials of the buffer pad plate can be used instead of the rubber pad plate.

[0031] The above is only the preferred embodiment of the present application, and any skilled person in the art can make any simple modification, equivalent change and modification to the above embodiment according to the technical essence of the present application without departing from the technical solution of the present application, and the modified, changed and modified embodiments still belong to the scope of the technical solution of the present application.

Claims

1. A quick-release buffer connection structure for an electric trailer, characterized in that: The system includes a quick-release connector I for connection to an electric trailer, a flexible rubber (5), and a quick-release connector II for connection to a transport device. One end of the flexible rubber (5) is connected to the quick-release connector I via a steering bend (2), and the other end is connected to the quick-release connector II via a support bend (6). The angle between the axis of the flexible rubber (5) and the axis of the straight pipe section (601) of the support bend used to connect the quick-release connector II is an acute angle. Both ends of the flexible rubber (5) are provided with buffer pads, and the two buffer pads are respectively connected to the corresponding flanges II (3). The two flanges II (3) are respectively connected to the steering bend (2) and the support bend (6). The bend (6) is rigidly connected; the quick-release connector II is a quick-release base (8), which includes a flange seat (803) for connecting with the transport equipment and a bend connecting tube (804) for inserting the straight pipe section (601) supporting the bend. The bend connecting tube (804) extends on the flange seat (803) in a direction perpendicular to the flange seat. The bend connecting tube has a slot (805) extending on it in a direction perpendicular to the flange seat. The bend connecting tube on both sides of the slot has a smooth hole boss (801) and a threaded boss (802) symmetrically arranged on it. The end of the quick-press screw (7) passes through the smooth hole boss and is screwed into the threaded boss.

2. The quick-release buffer connection structure for an electric trailer according to claim 1, characterized in that: Both ends of the flexible rubber (5) are provided with mounting studs (501). After the buffer pad is fitted onto the mounting studs (501), it is limited by a self-locking nut (11).

3. The quick-release buffer connection structure for an electric trailer according to claim 1, characterized in that: The buffer pad is a rubber pad (4).

4. The quick-release buffer connection structure for an electric trailer according to claim 1, characterized in that: One end of the slot (805) passes through the end of the bend connecting sleeve (804) away from the flange seat, and the other end is at a distance from the other end of the bend connecting sleeve (804).

5. A quick-release buffer connection structure for an electric trailer according to any one of claims 1-4, characterized in that: Quick-release connector I is flange I (1).

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